Cheated on my girlfriend with her stated I’m [M]

My girlfriend years ago had an older sister (only by a few years), who I always thought was incredibly hot.

My girlfriend was cute, petite, just over 5 feet tall. Small tits but a round ass.

Her sister was taller, slightly less skinny, but bigger tits and ass, and had the face and hairstyle you’d associate with a sexual goddess. (Or at least someone who knows their way around a dick).

Now while dating my girlfriend, I could never tell if her sister was flirting or just being silly with me. Things like slapping my ass, touching my chest randomly, right in front of my girlfriend no less.

One time we were all at group hangout, and we needed something from the store. My girlfriend was preoccupied so sent me and her sister. On the way there (don’t even remember the context), she tells me she has no gag reflex, and shows my by shoving her finger all the way to the back of her tongue.

She starts moving it around, audibly. I can her her fingers jostle the back of her tongue and throat, she’s really making it obvious that she has no gag reflex, and then looked over at me as I’m driving to show me the back of her throat.

She stops to suck all the spit off, which she doesn’t even try to make look like it’s not the sexiest thing I’ve ever seen. She pays her hands dry on her skirt, and she pretends like nothing happened.

Obviously I’m completely erect, I glance over at her a few times and can see her thighs beneath her skirt. She’s just looking out the passenger window, resting right arm on the door. Her left arm however, is like, tickling her own thigh?

She’s just playfully running her fingers up and down her thigh, I’m obviously driving so I can’t watch the entire thing, but needless to say I’m highly aroused.

We finally get to the store, I don’t try to hide that I needed to adjust myself. As we’re existing the car and round the front to head into the store, she grabs my hand to hold it.

“What’re you doing?” I ask.

“See that man over there getting out of his car? The red truck?”

“Yeah”

“That’s my exe, hold my hand I don’t want him to think I’m available”.

“Err, ok i guess”.

As we’re holding hands her boyfriend clearly spots us and walks over.

“Hey ———, nice to see you moved on quickly”.

They argue for a minute while I’m just awkwardly looking around, some people are walking by and they keep looking at us so I’m getting nervous. After a minute though, she tells him off saying “I treat her right”, I’m just going along because I’m so socially awkward I wouldn’t even know how to say no.

We head into the store, start getting some things. She thanks me for being so cool, and also apologizes. She says she’ll “make it up to me”.

We purchase our things, and get back into the car.

On the way back, she keep doing this ‘I’m staring at you but when you look at me I quickly look away’. I can tell she’s doing it on purpose.

I’m also hard again, and maybe I was being self conscious about it but I could feel her eyes on me. She asks:

“Have you ever cheated on my sister?”

“No of course not” I quickly shoot back.

There’s a silent pause.

“Okay, another question, I’m just curious, what do you consider cheating?”

“Well having sex obviously”.

She just makes an affirmative yet playful “hmmm”.

And she starts playing with my cock. I’m so confused because I’ve never cheated, but she is sexy as fuck. Also (not to make excuses), but that relationship with my girlfriend had issues with sex, we did some exciting stuff really early on, but not long after all sex vanished from the relationship).

“Well you were so nice playing along with me earlier, I figured I’d make it up to you”.

While I’m driving (through town now less in the middle of the day), she unzips my pants and starts sucking me off.

She is a blowjob queen I tell you there’s nothing like it, she’s licking my shaft, swirling her tongue around my head, then quickly deepthroats me and does it all again.

What felt like not-long-enough we round the last street corner. Before I’m finished she ticks me away and zips up my pants.

“We can continue later, if you’d like, remember you’re not cheating if you didn’t fuck me”.

We pull up, and she adjusts her skirt in such a way I can see she’s not wearing any panties. She sticks one finger in, and sticks it into my mouth.

We head inside, bring in the groceries etc, and I kiss my girlfriend on the cheek.

Through the rest of the small-friend/family party, her sister keeps making eyes at me. At one point she was licking the whisk clean from making some desert and she kept doing this throng with her tongue when no one else was looking.

After a few hours some people started to leave, then a couple more, not before long it was just me, my girlfriend and her sister.

My girlfriend really liked baths, she she went upstairs to start one while her sister and i were just watching whatever was on TV.

Right when my girlfriend dead out of view, her sister ripped my pants off.

It was unexpected, so I was still soft. She took one big suck of each nut, and then put me in her mouth up to my base.

As I was thinking about how to ask her nicely how to stop this, I could feel myself growing.

She just looked up at me, flicking my head with her tongue while I’m inside her mouth. Inch by inch my cock swelled, and so did my pleasure.

My head was now in the back of her throat, and I knew I was almost completely hard but she just held me there. Her hands started to fondle my balls, slowly teasing and tickling them.

As my cock became full erect, she slowly pulled her mouth off of it. I stammered for words but before I could get anything out she put her mouth on me again.

She would lightly tug on my nuts matching the cadence of her head bobbing, while my cock thrust into her mouth her tongue did devilish things.

She would move her mouth down my shaft, lick my balls, then continue to my taint and then back to the tip again where she’s swallow me whole.

I couldn’t take much more of this.

“I want you to cum in my pussy”

“I’m so confused, we shouldn’t be doing this”.

“Oh and —— will do this for you” she asked coyly”.

“We hang out all the time, I know you never have sex, and she knows I love having sex, so this works for everybody”.

Before I could respond she stands up and pulls her pants down to her ankles, exposing her way pussy and ass. She takes a hand of my cock, and sits down as she guides it into her pussy.

She was already dripping wet, so it quickly slid all the way in, and once it did she went to work.

Sitting on my lap, both facing the tv she starts bouncing on my cock. It feels fantastic. Everyone once in a while she would let herself all the way down, and start expertly grinding on me.

Then she’d lean forward, and grab both my balls in her hand as she’d slowly rise and fall on my dick. Massaging my nuts carefully as she’s continue going up and down.

“You know what? I don’t want it in my pussy”.

“To be honest I’m still confused what you want”.

She lifts herself off of me, takes my cock in her hand and strokes it a few times, spreading her wetness. She then readjusts slightly, and guides my tip towards her ass.

As she is lightly petting her ass with my cock, in see now what she wants. Her adjust myself as well, and she slowly sits onto my cock again, this time guiding into her extremely tight ass.

For a moment it hurts, as her ass is like a vice, but after a few thrusts it gets better, much better.

She starts playing with herself, releasing these sexy, whispered moans. She does this faster and faster until I feel her ass tighten even harder around my cock. She starts to cum, just playing wi her pussy while my dick is all the way in her ass. After almost a minute she starts to relax again, my dick feeling almost strangled at this point.

“That was nice, you’re big I wonder why ——-doesn’t do this more with you. But I want you to cum you know she won’t be up there forever”.

She expertly does this thing with her ass, she clenched and unclenches while she rises and falls, while she massages my balls again.

I’m close.

She slows it down, more carefully squeezing at the base of my dick, and pulls almost all the way out before she falls again. She squeezes both my balls with one hand, lightly tugging on them.

I’m even closer.

She does this a few more times, then suddenly stops and pulls off me completely.

“I want to kiss you when you cum”

She turns around and sits on me again, slipping her tongue into my mouth as she put my dick into has ass again.

We kiss deeply, as she putts her butt right against my lap.

I’m so fucking close I can’t believe I haven’t cum yet.

“My favorite part about getting fuck in the ass, is I can feel it better when you cum” she whispers into my ear.

At this point i can’t hold it any longer.

Her ass is at the tip of my cock, and I start cumming and feel like I’m higher than any drugs ever gotten me.

Each time my cock pumps, she lowers herself further onto me, she licks my neck.

My cock keeps pumping cum, I feel like more than ever. She starts to slow pull off of me and I fall out, cum still coming out of me.

She quickly gets on her knees and sucks my head, deepthroating me.

As my eyes roll back, I start to relax, I look down and she’s licking me clean. Cock to base, my stomach, even wiping it off of her hands and sucking them clean.

After a few minutes she’s licked me completely cum-free.

She pulls my pants up, we get back to watching tv and my girlfriend comes back.

Source: reddit.com/r/gonewildstories/comments/jxsm7y/cheated_on_my_girlfriend_with_her_stated_im_m